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74244 Scheda tecnica(PDF) 2 Page - Fairchild Semiconductor

Il numero della parte 74244
Spiegazioni elettronici  Octal 3-STATE Buffer/Line Driver/Line Receiver
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Produttore elettronici  FAIRCHILD [Fairchild Semiconductor]
Homepage  http://www.fairchildsemi.com
Logo FAIRCHILD - Fairchild Semiconductor

74244 Scheda tecnica(HTML) 2 Page - Fairchild Semiconductor

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Absolute Maximum Ratings(Note 1)
Note 1: The “Absolute Maximum Ratings” are those values beyond which
the safety of the device cannot be guaranteed. The device should not be
operated at these limits. The parametric values defined in the Electrical
Characteristics tables are not guaranteed at the absolute maximum ratings.
The “Recommended Operating Conditions” table will define the conditions
for actual device operation.
Recommended Operating Conditions
Electrical Characteristics
over recommended operating free air temperature range (unless otherwise noted)
Note 2: All typicals are at VCC = 5V, TA = 25°C.
Note 3: Not more than one output should be shorted at a time, and the duration should not exceed one second.
Supply Voltage
7V
Input Voltage
7V
Operating Free Air Temperature Range
0
°C to +70°C
Storage Temperature Range
−65°C to +150°C
Symbol
Parameter
Min
Nom
Max
Units
VCC
Supply Voltage
4.75
5
5.25
V
VIH
HIGH Level Input Voltage
2
V
VIL
LOW Level Input Voltage
0.8
V
IOH
HIGH Level Output Current
−15
mA
IOL
LOW Level Output Current
24
mA
TA
Free Air Operating Temperature
0
70
°C
Symbol
Parameter
Conditions
Min
Typ
Max
Units
(Note 2)
VI
Input Clamp Voltage
VCC = Min, II = −18 mA
−1.5
V
HYS
Hysteresis (VT+ − VT−)VCC = Min
0.2
0.4
V
Data Inputs Only
VOH
HIGH Level Output Voltage
VCC = Min, VIH = Min
2.7
VIL = Max, IOH = −1 mA
VCC = Min, VIH = Min
2.4
3.4
V
VIL = Max, IOH = −3 mA
VCC = Min, VIH = Min
2
VIL = 0.5V, IOH = Max
VOL
LOW Level Output Voltage
VCC = Min
IOL = 12 mA
0.4
V
VIL = Max
IOL = Max
0.5
VIH = Min
IOZH
Off-State Output Current,
VCC = Max
VO = 2.7V
20
µA
HIGH Level Voltage Applied
VIL = Max
IOZL
Off-State Output Current,
VIH = Min
VO = 0.4V
−20
µA
LOW Level Voltage Applied
II
Input Current at Maximum
VCC = Max
VI = 7V
0.1
mA
Input Voltage
IIH
HIGH Level Input Current
VCC = Max
VI = 2.7V
20
µA
IIL
LOW Level Input Current
VCC = Max
VI = 0.4V
−0.5
−200
µA
IOS
Short Circuit Output Current
VCC = Max (Note 3)
−40
−225
mA
ICC
Supply Current
VCC = Max,
Outputs HIGH
13
23
Outputs Open
Outputs LOW
27
46
mA
Outputs Disabled
32
54


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